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Prodevelopertutorial

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Given an array of non-negative integers determine if you are able to reach the last index in C++

Given an array of non-negative integers, you are initially positioned at the first index of the array.
Each element in the array represents your maximum jump length at that position.
Determine if you are able to reach the last index.
The solution involves checking if it is possible to reach the last index using the given jump lengths.

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Prodevelopertutorial

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Rain water trapping

Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining.
This problem can be solved in many different ways. Namely: Brute force, Dynamic Programming and Two Pointers.
The brute force solution involves calculating the amount of water stored in each individual bar and then summing up all the individual elements to get the output.
The two pointers solution uses two pointers to iterate over the input and calculate the result.
The dynamic programming solution stores left and right maximum height values in an array to avoid iterating over all the elements every time.
The time complexity of the brute force solution is O(n^2).
The time complexity of the two pointers solution is O(n) as it iterates over the input set only once.
The time complexity of the dynamic programming solution is O(n) as it also iterates over the input set only once.
The space complexity of the brute force solution is O(1), of the two pointers solution is O(1) and of the dynamic programming solution is O(n).
The output format for this problem is in the form of a json object with the summary lines in an array called 'summary'.

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Prodevelopertutorial

183

Group Anagrams in C++

The given problem involves grouping anagrams together in a given array of strings.
The solution uses a map to store the sorted version of each string as the key and a vector to store the corresponding values.
The input strings are sorted and added to the map with the sorted version as the key.
Finally, the values in the map are copied to a 2D vector, representing the grouped anagrams.

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Javacodegeeks

174

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A Practical Guide to Using GraalVM to Improve Java Application Performance

GraalVM is a high-performance runtime for Java and other JVM-based languages that offers tools to enhance application performance.
Key benefits of GraalVM include faster startup times, reduced memory footprint, enhanced performance, and polyglot capabilities.
GraalVM improves performance through native image compilation, advanced JIT compilation, elimination of warm-up time, and seamless integration of multiple languages.
Setting up GraalVM involves downloading and installing the GraalVM version matching your JDK, configuring the environment, and installing the native image tool.

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Medium

117

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Projects That will Test Your Limits But Impress Everyone Else.

Building an operating system is one of the most challenging and rewarding projects you can undertake.
Creating a distributed system involves building a network of computers that work together as a single system.
Designing and creating a custom programming language involves defining syntax, semantics, and writing a compiler or interpreter.
Developing a graphics engine is essential for rendering 2D and 3D graphics in applications.

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Medium

235

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Understanding Data Types in Programming

Primitive data types are the most basic forms of data types and are usually built into the programming language.
Common primitive data types include: Integer (int), Float (or Double), Character (char), Boolean (bool), and String.
Integer is used to represent whole numbers, Float represents real numbers or numbers with fractional parts.
Character is used to store single characters, Boolean represents a binary value, and String represents a sequence of characters used to represent text.

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Dev

215

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Understanding Variables and Data Types in JavaScript

JavaScript is a dynamic, loosely-typed language that allows variables to change type at runtime.
Variables in JavaScript are containers for storing data values and can be declared using var, let, or const.
JavaScript has different data types including primitive types (string, number, boolean, null, undefined, symbol, and bigint) and reference types (object, array, and function).
Type coercion and type checking are important concepts in JavaScript to handle data type conversions and check variable types.

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Logrocket

148

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React Native’s New Architecture: Sync and async rendering

React Native's New Architecture improves performance, developer experience, and aligns with React's features.
React Native's New Architecture includes synchronous layout updates, concurrent rendering, JavaScript Interface (JSI), and support for advanced React 18+ features.
The New Architecture removes the asynchronous bridge between JavaScript and native, replacing it with JSI for shared memory between the two layers, significantly improving performance.
The New Architecture includes backward compatibility with libraries targeting the old architecture.
Implementing synchronous updates via the useLayoutEffect Hook in React can avoid visual glitches and improve user experience.
The React Native team has created an app to compare the old and New Architectures and identify performance gaps.
If you use React Native 0.76 or later, the New Architecture is the default, requiring no additional configuration.

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Dev

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Open Source: The Easy Way, How not to break the Internet (Yet)😁

Open Source Software (OSS) promotes publicly accessible source code for collaboration and adaptability.
Contributing to open source projects provides real-world experience, networking opportunities, portfolio building, community engagement, and personal satisfaction.
Prerequisites for open source contributions include understanding Git, GitHub proficiency, open source licenses, project structure familiarity, best practices knowledge, and communication skills.
Open source contributions are not limited to coding; documentation and other non-coding contributions are also valuable.

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PlanetPython

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Django Weblog: Welcome to our new Django accessibility team members - Eli, Marijke, Saptak, Tushar

The Django Accessibility team welcomes four new members: Marijke Luttekes, Eliana Rosselli, Tushar Gupta, and Saptak Sengupta.
Marijke Luttekes is a web developer based in Groningen, specializing in Django and Python.
Eliana Rosselli is a full-stack developer from Uruguay with expertise in Django and React.
Tushar Gupta is a software engineer at Canonical and has contributed to Django through fellowships.
Saptak Sengupta is a developer focusing on security, privacy, accessibility, and human rights associated with websites.

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Medium

297

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Ai Create a Great Travel Map Animation Video Tool

A travel map animation video tool was developed using Cursor programming language.
The development progress was slow due to other projects, but accelerated after participating in a hackathon.
The core functions of the tool were completed in just over a day using Cursor programming.
The tool allows users to create and share travel videos on social media platforms.

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Medium

335

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API Design: Idempotency

Idempotency is important in APIs, especially in scenarios involving money transfers.
An example is given where duplicate requests to transfer $100 can lead to unintended $200 transfers, but if the operation is idempotent, only one $100 transfer will occur.
Idempotency ensures that the result of a request remains the same, regardless of how many times the request is duplicated.
HTTP methods like GET are idempotent, while methods like PATCH may not be idempotent, as shown in an example.

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Johndcook

Series for the reciprocal of the gamma function

Stirling’s asymptotic series for the gamma function is
Finding an asymptotic series for 1/Γ(z)
The coefficients in the series for 1/Γ are the same as the coefficients in the series for Γ, with alternating signs
Illustration of the result using Γ* and 1/Γ*

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Logrocket

122

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A guide to choosing the right PLM software

Product Lifecycle Management (PLM) software is designed to manage every aspect of a product’s lifecycle from ideation to retirement.
PLM solutions can eliminate inefficiencies, improve collaboration and accelerate time-to-market, but how do you select the right one for your organization?
Key features of PLM software include centralized product data management, workflow automation, version control, collaboration tools and compliance management.
PLM differs from ERP (enterprise resource planning) and PDM (product data management) in that PLM provides a holistic approach to managing a product's entire lifecycle, integrating PDM functionalities and connecting with ERP systems.
The benefits of investing in PLM software include streamlined product development, enhanced collaboration, improved data accuracy, accelerated time-to-market, improved product quality and cost savings.
The key features to prioritize when selecting a PLM solution include centralized product data management, integration with existing systems, scalability, a user-friendly interface, compliance management and analytics and reporting.
Popular PLM software solutions that cater to different industries, strengths, and pricing include Siemens Teamcenter, PTC Windchill, Autodesk Fusion Lifecycle, Oracle Agile PLM, and Aras Innovator.
Steps to select the right PLM solution include assessing your needs, involving stakeholders, evaluating vendors, considering total cost of ownership, testing the system and planning implementation.
Investing in the right PLM software means enabling teams to work smarter, innovate faster, and deliver better products. With the right system in place, you’ll unlock new efficiencies, improve collaboration, and stay ahead of your competition.

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Dev

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The Rise of UPI in India: Transforming Digital Payments

The Unified Payments Interface (UPI) has emerged as a game-changer in how Indians conduct financial transactions.
UPI simplifies transactions by eliminating the need for extensive bank account details.
UPI is secure, with two-factor authentication.
UPI's early adoption was limited to a handful of banks and users, with government initiatives giving it a significant boost.
UPI's collaboration with third-party apps such as Google Pay, PhonePe, and Paytm expanded its reach exponentially.
UPI's features include recurring payments, IPO applications, and international remittances.
UPI has enabled financial inclusion of the underbanked and unbanked populations in India.
UPI has enabled small businesses to accept payments through QR codes or mobile apps, eliminating the need for expensive point-of-sale systems.
UPI has reduced reliance on cash-based transactions, promoting transparency and reducing corruption.
Partnerships with international entities could make UPI a global player in digital payments.

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